Home / 10,079,380.80-15,119,071.20-9,911,419.20

Finding the Fourth Proportional to 10,079,380.80, 15,119,071.20 and 9,911,419.20

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Solution

The fourth proportional to 10,079,380.80, 15,119,071.20 and 9,911,419.20 is: 14,867,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079,380.80 : 15,119,071.20 = 9,911,419.20 : x
  2. Step 2: Convert to fraction form
    10,079,380.80/15,119,071.20 = 9,911,419.20/x
  3. Step 3: Cross multiply
    10,079,380.80x = 15,119,071.20 × 9,911,419.20
  4. Step 4: Simplify right side
    10,079,380.80x = 149,851,452,577,847.03
  5. Step 5: Solve for x
    x = 149,851,452,577,847.03/10,079,380.80
  6. Step 6: Final answer
    x = 14,867,128.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.